Hobby-Ace 4pcs Dust Cover Plug for DJI Mavic Air Drone Accessories and Battery Terminal + 4pcs Motor Cap Dust-Proof Motor Guards for Mavic Air Drone Package include : 3pcs dust cover for the DJI Mavic Air drone battery + 1pc for the drone terminal + 4pcs Motor Cap Well protection : Protect the battery charing port,dust-proof;to prevent short circuit;to Prevent oxidation Premium Quality : Made of Silicon material,Won't hurt your drone Dust Cover : Battery Dustproof Charging Protection Against Short Circuits Cover ( Total 4g) Motor Cap : Dust-proof, Moistureproof, Anti-collision, Precisly Demesions made to fit DJI Mavic Pro Motors.( Total 7g )